US Patent No: 5,308,311

Number of patents in Portfolio can not be more than 2000

Electrically heated surgical blade and methods of making

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A hemostatic surgical blade and methods of manufacturing such blades are provided, wherein the blade comprises a laminate region having a hardenable center layer and highly thermally conductive outer layers, joined to a second region of a low thermal conductivity material. A heating element is secured to the laminate region and in thermal communication therewith to thermally reform the collagen of tissue as it is incised. The heat generated by the heating element is conducted to the cutting edge of the blade to maintain the cutting edge temperature within 20.degree. C. to 70.degree. C. of a user-selected operating temperature. The second region reduces the conduction of heat to the handle of the instrument. The heating element comprises a thermally conductive dielectric layer attached to an outer surface of the laminate region, resistive conductive elements deposited on the dielectric, a second dielectric layer covering the resistive conductor elements, and an abherent coating disposed thereon to reduce coagulum buildup on the blade.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GYRUS ACMI, INC.SOUTHBOROUGH, MA119
GYRUS ENT L.L.C.BARTLETT, TN52
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANYPALO ALTO, CA4

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eggers, Philip E Dublin, OH 268 30274
Shaw, Robert F San Francisco, CA 22 1805

Cited Art Landscape

Patent Info (Count) # Cites Year
 
EVEREST MEDICAL CORPORATION (2)
* 4,802,476 Electro-surgical instrument 97 1987
* 4,958,539 Method of making an electrosurgical spatula blade 77 1989
 
GYRUS MEDICAL, INC. (2)
* 4,862,890 Electrosurgical spatula blade with ceramic substrate 96 1988
* 4,850,353 Silicon nitride electrosurgical blade 142 1988
 
HEMOSTATIC SURGERY CORPORATION, A CAYMAN ISLANDS COMPANY (2)
* 4,485,810 Surgical cutting blade 33 1980
* 4,481,057 Cutting device and method of manufacture 57 1981
 
AMP-AKZO CORPORATION, A CORP. OF DE (1)
* 4,770,067 Method of manufacturing surgical cutting tools for thermally aided surgery 15 1987
 
ELLMAN INTERNATIONAL, INC. (1)
* 4,754,754 Electrosurgical handpiece for blades and needles 61 1986
 
HEMOSTATIC SURGERY CORPORATION (1)
* 4,848,337 Abherent surgical instrument and method 82 1986
 
MEGADYNE MEDICAL PRODUCTS, INC. (1)
* 4,785,807 Electrosurgical knife 153 1987
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
NEUROTHERM, INC. (27)
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* 6,095,149 Method for treating intervertebral disc degeneration 255 1997
* 6,073,051 Apparatus for treating intervertebal discs with electromagnetic energy 315 1997
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* 5,980,504 Method for manipulating tissue of an intervertebral disc 292 1997
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* 6,099,514 Method and apparatus for delivering or removing material from the interior of an intervertebral disc 232 1998
6,261,311 Method and apparatus for treating intervertebral discs 203 1999
6,517,568 Method and apparatus for treating intervertebral discs 64 2000
6,547,810 Method for treating intervertebral discs 78 2000
6,767,347 Catheter for delivery of energy to a surgical site 56 2001
6,749,605 Catheter for delivery of energy to a surgical site 64 2001
7,069,087 Apparatus and method for accessing and performing a function within an intervertebral disc 38 2001
6,832,997 Electromagnetic energy delivery intervertebral disc treatment devices 34 2001
6,733,496 Intervertebral disc device employing flexible probe 142 2001
6,726,685 Intervertebral disc device employing looped probe 83 2001
6,638,276 Intervertebral disc device employing prebent sheath 66 2001
6,878,155 Method of treating intervertebral disc tissue employing attachment mechanism 63 2001
6,997,941 Method and apparatus for treating annular fissures in intervertebral discs 54 2003
7,400,930 Method for treating intervertebral discs 32 2003
7,282,061 Method of treating intervertebral disc 59 2003
7,267,683 Method for treating intervertebral discs 28 2003
7,309,336 Catheter for delivery of energy to a surgical site 27 2004
8,226,697 Method for treating intervertebral disc 0 2007
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8,128,619 Method for treating intervertebral discs 0 2007
7,647,123 Method for treating intervertebral discs 16 2007
 
ETHICON ENDO-SURGERY, INC. (22)
6,773,409 Surgical system for applying ultrasonic energy to tissue 195 2001
6,929,644 Electrosurgical jaw structure for controlled energy delivery 301 2001
6,913,579 Electrosurgical working end and method for obtaining tissue samples for biopsy 104 2002
7,083,619 Electrosurgical instrument and method of use 211 2002
6,802,843 Electrosurgical working end with resistive gradient electrodes 279 2002
6,926,716 Electrosurgical instrument 304 2002
7,011,657 Jaw structure for electrosurgical instrument and method of use 231 2003
7,112,201 Electrosurgical instrument and method of use 103 2003
7,041,102 Electrosurgical working end with replaceable cartridges 299 2003
6,905,497 Jaw structure for electrosurgical instrument 201 2003
7,070,597 Electrosurgical working end for controlled energy delivery 217 2003
7,087,054 Electrosurgical instrument and method of use 214 2003
7,169,146 Electrosurgical probe and method of use 239 2004
7,189,233 Electrosurgical instrument 93 2004
7,354,440 Electrosurgical instrument and method of use 97 2004
7,309,849 Polymer compositions exhibiting a PTC property and methods of fabrication 77 2004
7,632,269 Electrosurgical instrument with replaceable cartridge 5 2005
7,955,331 Electrosurgical instrument and method of use 25 2005
7,186,253 Electrosurgical jaw structure for controlled energy delivery 79 2005
8,075,558 Electrosurgical instrument and method 3 2005
7,381,209 Electrosurgical instrument 80 2007
7,981,113 Electrosurgical instrument 24 2008
 
ORATEC INTERVENTIONS, INC. (16)
6,482,204 Method and apparatus for controlled contraction of soft tissue 33 1996
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6,461,353 Orthopedic apparatus for controlled contraction of collagen tissue 8 1997
6,168,593 Electrode for electrosurgical coagulation of tissue 151 1998
* 6,135,999 Concave probe for arthroscopic surgery 135 1998
* 5,954,716 Method for modifying the length of a ligament 207 1998
* 6,007,533 Electrocauterizing tip for orthopedic shave devices 53 1998
* 6,004,320 Clip on electrocauterizing sheath for orthopedic shave devices 46 1998
6,283,960 Apparatus for delivery of energy to a surgical site 84 1998
6,214,001 Electrocauterizing tool for orthopedic shave devices 87 1998
6,176,857 Method and apparatus for applying thermal energy to tissue asymmetrically 101 1998
6,358,273 Soft tissue heating apparatus with independent, cooperative heating sources 28 1999
6,350,262 Method and apparatus for applying thermal energy to tissue asymetrically 113 2000
6,391,028 Probe with distally orientated concave curve for arthroscopic surgery 83 2000
6,645,203 Surgical instrument with off-axis electrode 25 2001
6,695,839 Method and apparatus for treatment of disrupted articular cartilage 38 2001
 
DOMAIN SURGICAL, INC. (14)
8,523,850 Method for heating a surgical implement 0 2009
8,523,851 Inductively heated multi-mode ultrasonic surgical tool 0 2009
8,523,852 Thermally adjustable surgical tool system 0 2009
8,506,561 Catheter with inductively heated regions 0 2009
* 8,491,578 Inductively heated multi-mode bipolar surgical tool 0 2009
8,430,870 Inductively heated snare 0 2009
8,419,724 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2009
8,414,569 Method of treatment with multi-mode surgical tool 0 2009
8,377,052 Surgical tool with inductively heated regions 0 2009
8,372,066 Inductively heated multi-mode surgical tool 0 2009
8,292,879 Method of treatment with adjustable ferromagnetic coated conductor thermal surgical tool 0 2009
8,858,544 Surgical instrument guide 0 2012
8,425,503 Adjustable ferromagnetic coated conductor thermal surgical tool 0 2012
8,617,151 System and method of controlling power delivery to a surgical instrument 0 2012
 
SURGINETICS INC. (8)
8,562,603 Method for conducting electrosurgery with increased crest factor 0 2006
8,357,154 Multielectrode electrosurgical instrument 0 2006
8,357,155 Multielectrode electrosurgical blade 0 2006
7,935,112 Electrosurgical instrument 0 2006
7,935,113 Electrosurgical blade 1 2006
7,896,875 Battery powered electrosurgical system 0 2006
7,867,225 Electrosurgical instrument with needle electrode 0 2006
7,867,226 Electrosurgical needle electrode 0 2006
 
ATRICURE, INC. (4)
6,179,837 Bipolar electrosurgical scissors 313 1995
* 5,766,166 Bipolar Electrosurgical scissors 266 1996
6,464,701 Bipolar electrosurgical scissors 220 2000
6,350,264 Bipolar electrosurgical scissors 246 2000
 
MICROLINE SURGICAL, INC. (4)
6,287,305 Electrosurgical instrument 94 1997
6,241,723 Electrosurgical system 195 1999
6,533,781 Electrosurgical instrument 42 2000
7,377,919 Electrosurgical instrument 17 2004
 
COVIDIEN LP (3)
8,292,888 Bipolar or ultrasonic surgical device 14 2002
8,523,890 Bipolar or ultrasonic surgical device 0 2012
8,845,665 Bipolar or ultrasonic surgical device 0 2013
 
AMADA SURGICAL, INC. (2)
* 5,643,256 Gold-plated electrosurgical instrument 65 1995
* 5,885,281 Gold-plated electrosurgical instrument 30 1997
 
APPLIED MEDICAL RESOURCES CORPORATION (2)
7,909,819 Monopolar electrosurgical return electrode 6 2006
8,048,068 Monopolar electrosurgical return electrode 0 2011
 
CYNOSURE, INC. (2)
* 5,476,461 Endoscopic light delivery system 24 1994
* 5,700,260 Endoscopic light delivery system 25 1995
 
Utah Medical Products, Inc. (2)
* 6,126,656 Electrosurgical cutting device 5 1996
* 5,860,976 Electrosurgical cutting device 161 1997
 
Applied Komatsu Technology, Inc. (1)
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BAKERY HOLDINGS LLC (1)
* 6,305,149 Method and apparatus for packaging meat 3 1998
 
CLINICON CORPORATION (1)
* 6,974,452 Cutting and cauterizing surgical tools 26 2000
 
CONMED CORPORATION (1)
6,511,479 Electrosurgical blade having directly adhered uniform coating of silicone release material and method of manufacturing same 49 2001
 
HAMILTON SUNDSTRAND SPACE SYSTEMS INTERNATIONAL, INC. (1)
* 8,129,036 High strength and high thermal conductivity heat transfer apparatus 0 2008
 
HEMOSTATIX MEDICAL TECHNOLOGIES LLC (1)
* 8,475,444 Heated hemostatic surgical blade system and method 0 2012
 
Hemostatix Medical Techs, LLC (1)
* 8,142,425 Hemostatic surgical blade, system and method of blade manufacture 5 2007
 
LINVATEC CORPORATION (1)
* 7,244,256 Electrosurgical device with adhesive-free insulating piece and method of making same 5 2004
 
NIKON CORPORATION (1)
* 6,003,419 Microcutting device and incising method 9 1998
 
OLYMPUS CORPORATION (1)
7,458,969 Therapeutic device for tissue from living body 0 2002
 
OLYMPUS OPTICAL CO., LTD. (1)
7,329,257 Medical treatment instrument 196 2003
 
SMITH & NEPHEW, INC. (1)
7,150,747 Electrosurgical cutter 37 2003
 
SUMITOMO RUBBER INDUSTRIES, LTD. (1)
7,449,019 Intervertebral decompression 35 2003
 
WATLOW ELECTRIC MANUFACTURING COMPANY (1)
* 7,304,276 Thick film heater integrated with low temperature components and method of making the same 0 2001
 
Other [Check patent profile for assignment information] (3)
* 5,827,281 Insulated surgical scissors 294 1996
* 6,230,603 Cutting blade for resistance-heated elastomer cutters 1 1996
6,645,204 Intervertebral disc device employing flexible probe 2001
* Cited By Examiner